Sunco Exporters Pvt. Ltd. Manufactures Revolving Screener for Filtering Pith and Dust. Sunco Exporters Pvt. Ltd. Supplies coir machines and coir products. The Revolving Screener is designed for Filtering Pith and Dust. In Revolving Screener decorticated fibre is thrown into the smaller end of the screener and as the machine revolves at specified slow speed, the fibre travels to the other large opening shedding pith and dust which drop down. Filtered fibre comes out of the larger end automatically.